Interactive Global Illumination Effects Using
Deterministically Directed Layered Depth Maps

F. P. Aalund, J. R. Frisvad, and J. A. Bærentzen

Technical University of Denmark

Abstract
A layered depth map is an extension of the well-known depth map used in rasterization. Multiple layered depth maps can be used as a coarse scene representation. We develop two global illumination methods which use said scene representation. The first is an interactive ambient occlusion method. The second is an interactive singlebounce indirect lighting method based on photon differentials. All of this is implemented in a rasterization-based pipeline.

Reference

Aalund, F. P., Frisvad, J. R., Bærentzen, J. A. Interactive global illumination effects using deterministically directed layered depth maps. In Proceedings of Eurographics Symposium on Rendering - Experimental Ideas and Implementations (EGSR-EI&I 2015), June 2015. [abstract] [lowres pdf]